Cooking-stove



UNITED STATES PATENT. oF-Frou.

SI-LERMAY S. JEWETT, OF BUFFALO, NEW' YORK.

COOKING-STOVE.

Specification of Letters Patent No. `28,673, :dated .J une 12, y1860.

To all 'whom t may concern:

Be it known that I, SHERMAN S. Jnwn'r'r, of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Cooking- Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of my invention relates to the construction and combination of an inner brick oven with outer brick walls as herein described.

In the construction of cooking stoves it is not only a desideratum to make an oven which will secure the advantages of a brick oven for cooking purposes, but also to so construct, arrange and support the brick material within the cast iron part of the stove, as to insure economy, durability and convenience in the adaptation and use thereof for such purpose.

It is also a desideratum to make a stove which will consume the least possible quantity of fuel and at the same time produce a solid and uniform heat; and which will retain the heat within the stove for the greatest length of time after the fuel is consumed. All these purposes I have successfully accomplished.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

Figure I is a perspective of a three flue cooking Vstove embracing my improvement. Fig. II is a longitudinal section of the same. Fig. III is a plan of my improved check plate or grate with slabs of soapstone and brick therein. Fig. IV is a cross section of check plate. Fig V is a cross section of a slab of soapstone or brick as prepared for the check plate or grate.

I make the grate or check plate in two parts so constructed that when the plates are put together a groove or recess will be formed to receive and hold the prepared soapstone or brick. A top plan of this check plate is represented at (A) Fig. III, and at (B) is shown a slab of soapstone as connected to and supported by the check plate and B2 prepared brick for like purpose. At (A) Fig. IV both parts of the check plate are shown in section as put together and held by the screw bolt (c).

At (a) Fig. II the groove or recess formed by the plate when both parts are together is distinctly seen. A tongue is formed on each edge of the slab of soap stone or brick as shown at (b) Fig. V which is also seen in its place in the groove at (b) Fig. II.

I prefer to make the check plates so as to receive small square slabs of soap -stone as represented in Fig. III as the material can be more economically used in small slabs, and is less liable to warp and break, but I do not intend to limit myself to any particular size or form. The slabs of soapstone or brick are prepared and laid into the lower half of the plate and then the upper half of the plate is laid on and the two are bound and held together by means of the screw bolt (c) thereby securely and firmly holding the brick or soapstone material. This is done before any connection thereof is made with the stove and forms a separate wall which may be constructed as a distinct thing and then connected with the stove. The Wall thus constructed and forming the oven-bottom is supported in thestove upon the partition walls of the lower flues and upon flanges or ribs cast upon the sides of the stove, and the wall forming the oven-back rests upon the sail partition walls and is supported or held in place at the top by ribs or flanges on the side plates of the stove, and the 'wall forming the oven-top is supported by ribs or flanges (e) on the side plates as shown in Fig. II.

At (D) Fig. II is represented brick or slabs of soapstone which are laid upon the lower plate for the purpose of an outer wall of brick and D2 are similar slabs of soapstone or brick resting against the back plate. The object of this outer brick wall is to prevent the rapid escape of heat from the oven and to make a more perfect and solid body of hot air in the flue space outside the oven, which will have the effect to prolong and retain the heat within the oven for a greater length of time after the oven is fairly heated and the fuel consumed, than can be done without such wall of hot air. At (F) is shown a brick of larger and thicker con-.

struction which forms the fire back. This is constructed and supported substantially like the fire back described in my patent of May 17th 1859 or the fire back may be constructed of smaller brick supported in a check plate as herein described for the bottom and back of the oven.

I have ascertained from actual experiment I claimthat a stove constructed according to my The inner brick oven7 constructed as hereimprovement herein Will produce a more in described, in combination With the outer steady and substantial heat from a given Walls of brick D, D2, for the purposes and 5 quantity of fuel and retain the heat for substantially as set forth.

baking purposes for a Greater lenffth of time after the fuel is consiimed thanbany other SHERMAN S' JEVETT' stove with Which I am acquainted.' /Vitnesses: i

Two batches of bread may be baked in the E. B. FORBUSH, 10 oven after the fuel is consumed. W. H. FORBUSH. i

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